This TV remote control receiver uses a ratchet system to activate an old drum-type selector to change channels. A common system at the time. The circuit is from a Radio Electronics from February 1961.
This circuit was suggested by General Electric / RCA in a 1980s documentation. The components are of...
We found this circuit in the March 1993 issue of Electronis Now magazine. The circuit uses common...
The basic idea of this 1989 circuit is to trigger a relay for a while when a call signal occurs on...